Home / 52,639.36-72,642.32-28,440.32

Finding the Fourth Proportional to 52,639.36, 72,642.32 and 28,440.32

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Solution

The fourth proportional to 52,639.36, 72,642.32 and 28,440.32 is: 39,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.36 : 72,642.32 = 28,440.32 : x
  2. Step 2: Convert to fraction form
    52,639.36/72,642.32 = 28,440.32/x
  3. Step 3: Cross multiply
    52,639.36x = 72,642.32 × 28,440.32
  4. Step 4: Simplify right side
    52,639.36x = 2,065,970,826.34
  5. Step 5: Solve for x
    x = 2,065,970,826.34/52,639.36
  6. Step 6: Final answer
    x = 39,247.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.